1#ifndef A3000_H
2#define A3000_H
3
4/* $Id: a3000.h,v 1.1.1.1 2007/08/03 18:52:55 Exp $
5 *
6 * Header file for the Amiga 3000 built-in SCSI controller for Linux
7 *
8 * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
9 *
10 */
11
12#include <linux/types.h>
13
14int a3000_detect(struct scsi_host_template *);
15int a3000_release(struct Scsi_Host *);
16
17#ifndef CMD_PER_LUN
18#define CMD_PER_LUN 2
19#endif
20
21#ifndef CAN_QUEUE
22#define CAN_QUEUE 16
23#endif
24
25/*
26 * if the transfer address ANDed with this results in a non-zero
27 * result, then we can't use DMA.
28 */
29#define A3000_XFER_MASK  (0x00000003)
30
31typedef struct {
32             unsigned char      pad1[2];
33    volatile unsigned short     DAWR;
34    volatile unsigned int       WTC;
35             unsigned char      pad2[2];
36    volatile unsigned short     CNTR;
37    volatile unsigned long      ACR;
38             unsigned char      pad3[2];
39    volatile unsigned short     ST_DMA;
40             unsigned char      pad4[2];
41    volatile unsigned short     FLUSH;
42             unsigned char      pad5[2];
43    volatile unsigned short     CINT;
44             unsigned char      pad6[2];
45    volatile unsigned short     ISTR;
46	     unsigned char      pad7[30];
47    volatile unsigned short     SP_DMA;
48             unsigned char      pad8;
49    volatile unsigned char      SASR;
50             unsigned char      pad9;
51    volatile unsigned char      SCMD;
52} a3000_scsiregs;
53
54#define DAWR_A3000		(3)
55
56/* CNTR bits. */
57#define CNTR_TCEN		(1<<5)
58#define CNTR_PREST		(1<<4)
59#define CNTR_PDMD		(1<<3)
60#define CNTR_INTEN		(1<<2)
61#define CNTR_DDIR		(1<<1)
62#define CNTR_IO_DX		(1<<0)
63
64/* ISTR bits. */
65#define ISTR_INTX		(1<<8)
66#define ISTR_INT_F		(1<<7)
67#define ISTR_INTS		(1<<6)
68#define ISTR_E_INT		(1<<5)
69#define ISTR_INT_P		(1<<4)
70#define ISTR_UE_INT		(1<<3)
71#define ISTR_OE_INT		(1<<2)
72#define ISTR_FF_FLG		(1<<1)
73#define ISTR_FE_FLG		(1<<0)
74
75#endif /* A3000_H */
76